Trade Discount 25%
MCB 1P 20A 10kA D Curve DIN Rail NB1-63H Chint
Chint NB1-63H 1P 20A MCB features 10kA breaking capacity, D-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
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Alternatively Known As: Single-Pole MCB, DIN Rail Circuit Breaker, Thermal-Magnetic Circuit Breaker, D20 MCB
Technical Specifications
- Rated Current: 20 A
- Number of Poles: 1P
- Trip Curve: D curve, 10–14 times rated current
- Rated Breaking Capacity: 10 kA
- Rated Voltage: 230/400 V AC to 240/415 V AC
- Rated Frequency: 50/60 Hz
- Insulation Voltage: 500 V
- Energy Limiting Class: 3
- Protection Degree: IP20
- Terminal Capacity: Up to 25 mm² cable or 10 mm² busbar
- Terminal Torque: 2.0 N·m
- Electrical Life: Up to 10,000 operations
- Mechanical Life: Up to 20,000 operations
- Mounting: 35 mm DIN rail to EN 60715
- Power Loss: Maximum 3.5 W per pole
- Dimensions (H x L x W): 86mm x 78mm x 18mm
- Weight: 0.12 kg
Key Features
- Thermal-magnetic protection against overload and short-circuit currents
- D-curve characteristic accommodates higher motor and transformer inrush currents
- 10 kA rated short-circuit breaking capacity
- Single-pole configuration for phase circuit protection
- DIN rail mounting with quick-clips
- Top or bottom supply connection
- Contact position indicator
- Compatible with auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
- Installation, selection and testing should be carried out by a licensed electrician in accordance with AS/NZS 3000 and the manufacturer's instructions. Confirm that the prospective fault current at the installation point does not exceed the 10 kA breaking capacity.
Applications
- Domestic distribution boards
- Commercial switchboards
- Industrial control panels
- Protection of motor, transformer and other high-inrush circuits
- Low-voltage AC branch-circuit protection
Standards & Compliance
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand product standard for household and similar AC circuit-breakers; verify local certification and approval requirements before installation.
- AS/NZS 3000 applies to selection, installation and testing within Australian electrical installations.
Environmental Benefits
- Thermal-magnetic protection can limit damage to downstream equipment and reduce premature replacement.
- Replaceable modular construction allows an individual protective device to be changed without replacing the complete switchboard assembly.
- Metal components and thermoplastic housing materials can be separated for recycling at end of service life where suitable recycling facilities are available.
- Low standby energy use, with power consumption limited primarily to operating losses during current flow.
Warranty Information
CHINT warranty policy states 27 months from the date of manufacture for other low-voltage apparatus sold through authorised sales channels; terms may vary by contract and local distributor conditions.
Available Now
Available through authorised CHINT distributors in Australia.
